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import Helper from '@ember/component/helper';
import {inject} from '@ember/service';
import match from '@bennerinformatics/ember-fw-gc/utils/match';

/**
* Checks if a user has access to a specific app. Uses the [match](../classes/MatchUtil.html)
* utility, so anything passed in for the app will be passed to the match function. The `needle`
* is a flat list of all user apps, and the `haystack` is what you pass into the component. You are
* able to check one or multiple apps, as in the example below.
*
* Usage:
 * ```handlebars
 * {{has-app 'appId'}} <!-- if the user has access to the "appId" app, this returns true -->
 * {{has-app (array 'appId1' 'appId2')}} <!-- if the user has access to both apps, this returns true -->
 * {{has-app (array (array 'appId1' 'appId2'))}} <!-- if the user has access to either of the apps, this returns true -->
 * ```
 *
 * @public
 * @class HasApp
 * @extends Ember.Helper
 * @module Helpers
 */
export default Helper.extend({
    currentUser: inject(),

    compute(apps) {
        return match(this.get('currentUser.apps'), apps);
    }
});